CN116217255B - High-precision ceramic material for 5G signal base station and preparation method thereof - Google Patents
High-precision ceramic material for 5G signal base station and preparation method thereof Download PDFInfo
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- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 229920002050 silicone resin Polymers 0.000 claims abstract description 44
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 29
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 29
- -1 magnesium lanthanum aluminate Chemical class 0.000 claims abstract description 27
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims abstract description 20
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003960 organic solvent Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 33
- 239000000843 powder Substances 0.000 claims description 29
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- 239000000919 ceramic Substances 0.000 claims description 16
- 235000015895 biscuits Nutrition 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
- 238000000498 ball milling Methods 0.000 claims description 7
- 238000000748 compression moulding Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 150000004703 alkoxides Chemical class 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000012074 organic phase Substances 0.000 claims description 3
- XPGAWFIWCWKDDL-UHFFFAOYSA-N propan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCC[O-].CCC[O-].CCC[O-].CCC[O-] XPGAWFIWCWKDDL-UHFFFAOYSA-N 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- BCWYYHBWCZYDNB-UHFFFAOYSA-N propan-2-ol;zirconium Chemical compound [Zr].CC(C)O.CC(C)O.CC(C)O.CC(C)O BCWYYHBWCZYDNB-UHFFFAOYSA-N 0.000 claims description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 30
- 238000005245 sintering Methods 0.000 description 30
- 238000004321 preservation Methods 0.000 description 15
- 238000001035 drying Methods 0.000 description 13
- 238000001816 cooling Methods 0.000 description 6
- 238000007865 diluting Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052863 mullite Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002390 rotary evaporation Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
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Abstract
The invention relates to the field of ceramic materials, in particular to a high-precision ceramic material for a 5G signal base station and a preparation method thereof, and the high-precision ceramic material comprises the following preparation raw materials in parts by weight: 90-95 parts of alpha-aluminum oxide, 6-8 parts of aluminum fluoride, 0.2-0.8 part of magnesium lanthanum aluminate, 3-5 parts of vinyl liquid silicone resin and 80-120 parts of organic solvent.
Description
Technical Field
The invention relates to the field of ceramic materials, in particular to a high-precision ceramic material for a 5G signal base station and a preparation method thereof.
Background
The 5G signal base station is core equipment of the 5G network, provides wireless coverage, realizes wireless signal transmission between a wired communication network and a wireless terminal, and needs a large amount of high-precision ceramic materials when the 5G signal base station is built, wherein the high-precision ceramic materials have strict requirements on the size, if the linear shrinkage rate is too large during production, internal stress can be generated in the high-precision ceramic materials, so that the precision is influenced by the size deformation, serious cracks are even generated, the requirement of the building specification of the 5G signal base station is not met, and the building progress of the 5G signal base station is delayed.
Disclosure of Invention
The invention aims to: aiming at the technical problems, the invention provides a high-precision ceramic material for a 5G signal base station and a preparation method thereof.
The technical scheme adopted is as follows:
the high-precision ceramic material for the 5G signal base station comprises the following preparation raw materials in parts by weight:
90-95 parts of alpha-alumina, 6-8 parts of aluminum fluoride, 0.2-0.8 part of magnesium lanthanum aluminate, 3-5 parts of vinyl liquid silicone resin and 80-120 parts of organic solvent.
Further, the preparation method comprises the following preparation raw materials in parts by weight:
95 parts of alpha-alumina, 8 parts of aluminum fluoride, 0.6 part of magnesium lanthanum aluminate, 5 parts of vinyl liquid silicone resin and 100 parts of organic solvent.
Further, the vinyl liquid silicone resin is a metal alkoxide modified vinyl liquid silicone resin.
Further, the preparation method of the metal alkoxide modified vinyl liquid silicone resin comprises the following steps:
mixing vinyl triethoxysilane and toluene, stirring uniformly, dripping dilute hydrochloric acid, heating to 40-50 ℃ after dripping, reacting for 8-12h, continuously heating to 85-95 ℃ for reacting for 1-3h, recovering room temperature, separating out an organic phase, concentrating under reduced pressure to obtain liquid vinyl silicone resin, dissolving the obtained liquid vinyl silicone resin with toluene under the protection of nitrogen, adding metal alkoxy compound, heating to 55-65 ℃ for reacting for 6-10h, and performing reduced pressure rotary evaporation.
Further, the metal alkoxide is a zirconium alkoxide.
Further, the zirconium alkoxy compound is tetra-n-propyl zirconate or tetra-isopropyl zirconate.
Further, the metal alkoxide is used in an amount of 5 to 12% by mass of the liquid vinyl silicone resin.
Further, the mass concentration of the dilute hydrochloric acid is 0.5-1%.
Further, the boiling point of the organic solvent is less than or equal to 100 ℃.
The invention also provides a preparation method of the high-precision ceramic material for the 5G signal base station, which comprises the following steps:
respectively drying alpha-alumina, aluminum fluoride and magnesium lanthanum aluminate, mixing to obtain first powder, diluting vinyl liquid silicone resin with an organic solvent, mixing with the first powder, ball milling, drying to remove the organic solvent to obtain second powder, compression molding the second powder to obtain a ceramic biscuit, heating and sintering the ceramic biscuit to 600-650 ℃ at first, heat-preserving and sintering for 90-120min, heating to 800-850 ℃ at second, heat-preserving and sintering for 90-120min, heating to 1400-1450 ℃ at third, heat-preserving and sintering for 120-180min, and finally cooling to room temperature along with a furnace.
The invention has the beneficial effects that:
the invention provides a high-precision ceramic material for 5G signal base station, the liquid silicone resin is a semi-inorganic semi-organic polymer with-Si-O-Si-as main chain, and can be cross-linked under a certain condition to form three-dimensional network structure product, and then the three-dimensional network structure product is mixed with alpha-alumina, aluminium fluoride and magnesium lanthanum aluminate, and the three-dimensional network structure can cover these ceramic powders into the ceramic material to form granules with a certain shape and strength, and in the course of sintering, the granules are decomposed and SiO is used 2 The form of/(Si-O-C-remains, forming alumina-SiO) 2 The aluminum fluoride ternary system generates mullite whiskers in situ during high-temperature sintering, the generated mullite whiskers are interpenetrated in the ceramic material to play a role of supporting and bridging, and the vinyl liquid silicon resin is oxidized and decomposed to generate gas during the high-temperature sintering process, the continuous overflow of the gas counteracts the internal stress generated by the internal densification of the ceramic material, the linear shrinkage rate is reduced, the production precision is improved, the inventor modifies the liquid silicon resin by using a metal alkoxy compound, metal elements are introduced into a high polymer chain after transesterification reaction, metal oxides can be formed to toughen and strengthen the ceramic material during sintering, and lanthanum magnesium aluminate can promote the sintering densification of the ceramic material, refine grains and improve the density and the mechanical strength.
Drawings
FIG. 1 is a diagram showing the microscopic morphology of a high-precision ceramic material according to example 1 of the present invention;
as can be seen from the figure, the mullite whisker is interpenetrated in the ceramic material to play a role of supporting and bridging.
Detailed Description
The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention. The technology not mentioned in the present invention refers to the prior art.
Example 1:
the high-precision ceramic material for the 5G signal base station comprises the following preparation raw materials in parts by weight:
95 parts of alpha-alumina, 8 parts of aluminum fluoride, 0.6 part of magnesium lanthanum aluminate, 5 parts of vinyl liquid silicone resin and 100 parts of acetone.
Wherein the vinyl liquid silicone resin is tetra-n-propyl zirconate modified vinyl liquid silicone resin, and the preparation method comprises the following steps:
adding 1kg of vinyltriethoxysilane and 10L of toluene into a reaction kettle with a condenser, stirring to uniformly mix, dripping 285mL of diluted hydrochloric acid with the mass concentration of 1% into the reaction kettle by using a dropping funnel, heating to 45 ℃ after dripping, stirring and reacting for 10 hours, continuously heating to 95 ℃ and stirring and reacting for 2 hours, closing heating, naturally recovering room temperature, separating an organic phase, drying by using anhydrous sodium sulfate, decompressing and steaming to obtain liquid vinyl silicone resin, dissolving the obtained liquid vinyl silicone resin by using a proper amount of toluene under the protection of nitrogen, adding tetra-n-propyl zirconate with the mass of 10%, heating to 60 ℃ after reacting for 8 hours, transferring the reaction liquid to a rotary evaporator, decompressing and steaming.
The preparation method of the high-precision ceramic material for the 5G signal base station comprises the following steps:
drying alpha-aluminum oxide, aluminum fluoride and magnesium lanthanum aluminate at 100 ℃ for 10 hours respectively, mixing to obtain first powder, diluting the prepared tetra-n-propyl zirconate modified vinyl liquid silicone resin with acetone, mixing and ball milling with the first powder for 15 hours, drying at 85 ℃ for 24 hours, removing acetone to obtain second powder, transferring the second powder into a mould, carrying out compression molding under 15MPa pressure for 80 seconds to obtain a ceramic biscuit, heating and sintering the obtained ceramic biscuit in an air atmosphere, firstly heating to 650 ℃ at a speed of 10 ℃/min, carrying out heat preservation and sintering for 100 minutes, secondly heating to 820 ℃ at a speed of 5 ℃/min, carrying out heat preservation and sintering for 120 minutes, thirdly heating to 1430 ℃ at a speed of 2 ℃/min, carrying out heat preservation and sintering for 150 minutes, and finally cooling to room temperature along with a furnace.
Example 2:
the high-precision ceramic material for the 5G signal base station comprises the following preparation raw materials in parts by weight:
95 parts of alpha-alumina, 8 parts of aluminum fluoride, 0.8 part of magnesium lanthanum aluminate, 5 parts of vinyl liquid silicone resin and 120 parts of acetone.
Wherein the vinyl liquid silicone resin is tetra-n-propyl zirconate modified vinyl liquid silicone resin, and the preparation method is the same as that of the example 1;
the preparation method of the high-precision ceramic material for the 5G signal base station comprises the following steps:
drying alpha-aluminum oxide, aluminum fluoride and magnesium lanthanum aluminate at 100 ℃ for 10 hours respectively, mixing to obtain first powder, diluting the prepared tetra-n-propyl zirconate modified vinyl liquid silicone resin with acetone, mixing and ball milling with the first powder for 15 hours, drying at 85 ℃ for 24 hours, removing acetone to obtain second powder, transferring the second powder into a mould, carrying out compression molding under 15MPa pressure for 80 seconds to obtain a ceramic biscuit, heating and sintering the obtained ceramic biscuit in an air atmosphere, firstly heating to 650 ℃ at a speed of 10 ℃/min, carrying out heat preservation and sintering for 120 minutes, secondly heating to 850 ℃ at a speed of 5 ℃/min, carrying out heat preservation and sintering for 120 minutes, thirdly heating to 1450 ℃ at a speed of 2 ℃/min, carrying out heat preservation and sintering for 180 minutes, and finally cooling to room temperature along with a furnace.
Example 3:
the high-precision ceramic material for the 5G signal base station comprises the following preparation raw materials in parts by weight:
90 parts of alpha-alumina, 6 parts of aluminum fluoride, 0.2 part of magnesium lanthanum aluminate, 3 parts of vinyl liquid silicone resin and 80 parts of acetone.
Wherein the vinyl liquid silicone resin is tetra-n-propyl zirconate modified vinyl liquid silicone resin, and the preparation method is the same as that of the example 1;
the preparation method of the high-precision ceramic material for the 5G signal base station comprises the following steps:
drying alpha-aluminum oxide, aluminum fluoride and magnesium lanthanum aluminate at 100 ℃ for 10 hours respectively, mixing to obtain first powder, diluting the prepared tetra-n-propyl zirconate modified vinyl liquid silicone resin with acetone, mixing and ball milling with the first powder for 15 hours, drying at 85 ℃ for 24 hours, removing acetone to obtain second powder, transferring the second powder into a mould, carrying out compression molding under 15MPa pressure for 80 seconds to obtain a ceramic biscuit, heating and sintering the obtained ceramic biscuit in an air atmosphere, firstly heating to 600 ℃ at a speed of 10 ℃/min, carrying out heat preservation and sintering for 90 minutes, secondly heating to 800 ℃ at a speed of 5 ℃/min, carrying out heat preservation and sintering for 90 minutes, thirdly heating to 1400 ℃ at a speed of 2 ℃/min, carrying out heat preservation and sintering for 120 minutes, and finally cooling to room temperature along with a furnace.
Example 4:
the high-precision ceramic material for the 5G signal base station comprises the following preparation raw materials in parts by weight:
95 parts of alpha-alumina, 6 parts of aluminum fluoride, 0.8 part of magnesium lanthanum aluminate, 3 parts of vinyl liquid silicone resin and 120 parts of acetone.
Wherein the vinyl liquid silicone resin is tetra-n-propyl zirconate modified vinyl liquid silicone resin, and the preparation method is the same as that of the example 1;
the preparation method of the high-precision ceramic material for the 5G signal base station comprises the following steps:
drying alpha-aluminum oxide, aluminum fluoride and magnesium lanthanum aluminate at 100 ℃ for 10 hours respectively, mixing to obtain first powder, diluting the prepared tetra-n-propyl zirconate modified vinyl liquid silicone resin with acetone, mixing and ball milling with the first powder for 15 hours, drying at 85 ℃ for 24 hours, removing acetone to obtain second powder, transferring the second powder into a mould, carrying out compression molding under 15MPa pressure for 80 seconds to obtain a ceramic biscuit, heating and sintering the obtained ceramic biscuit in an air atmosphere, firstly heating to 600 ℃ at a speed of 10 ℃/min, carrying out heat preservation and sintering for 120 minutes, secondly heating to 800 ℃ at a speed of 5 ℃/min, carrying out heat preservation and sintering for 120 minutes, thirdly heating to 1400 ℃ at a speed of 2 ℃/min, carrying out heat preservation and sintering for 180 minutes, and finally cooling to room temperature along with a furnace.
Example 5:
the high-precision ceramic material for the 5G signal base station comprises the following preparation raw materials in parts by weight:
90 parts of alpha-alumina, 8 parts of aluminum fluoride, 0.2 part of magnesium lanthanum aluminate, 5 parts of vinyl liquid silicone resin and 80 parts of acetone.
Wherein the vinyl liquid silicone resin is tetra-n-propyl zirconate modified vinyl liquid silicone resin, and the preparation method is the same as that of the example 1;
the preparation method of the high-precision ceramic material for the 5G signal base station comprises the following steps:
drying alpha-aluminum oxide, aluminum fluoride and magnesium lanthanum aluminate at 100 ℃ for 10 hours respectively, mixing to obtain first powder, diluting the prepared tetra-n-propyl zirconate modified vinyl liquid silicone resin with acetone, mixing and ball milling with the first powder for 15 hours, drying at 85 ℃ for 24 hours, removing acetone to obtain second powder, transferring the second powder into a mould, carrying out compression molding under 15MPa pressure for 80 seconds to obtain a ceramic biscuit, heating and sintering the obtained ceramic biscuit in an air atmosphere, firstly heating to 650 ℃ at a speed of 10 ℃/min, carrying out heat preservation and sintering for 90 minutes, secondly heating to 850 ℃ at a speed of 5 ℃/min, carrying out heat preservation and sintering for 90 minutes, thirdly heating to 1450 ℃ at a speed of 2 ℃/min, carrying out heat preservation and sintering for 120 minutes, and finally cooling to room temperature along with a furnace.
Comparative example 1:
substantially the same as in example 1, except that lanthanum magnesium aluminate was not added.
Comparative example 2:
substantially the same as in example 1, except that the prepared tetra-n-propyl zirconate modified vinyl liquid silicone resin was replaced with a commercially available vinyl liquid silicone resin (delta DT-10050).
Performance test:
the ceramic materials prepared in examples 1 to 5 and comparative examples 1 to 2 of the present invention were used as test samples, the dimensions of the test samples before and after sintering were measured using a vernier caliper, the linear shrinkage was calculated, the flexural strength of the test samples was measured in units of a three-point bending method on a universal tester, the span was 30mm, the loading rate was 0.5mm/min, the fracture toughness of the test samples was measured and calculated in units of MPa.m using an indentation method 1/2 The test results are shown in Table 1 below:
table 1:
| flexural Strength | Fracture toughness | Linear shrinkage rate | |
| Example 1 | 166.2 | 3.05 | 0.36 |
| Example 2 | 163.7 | 2.96 | 0.42 |
| Example 3 | 159.3 | 2.84 | 0.44 |
| Example 4 | 162.9 | 3.01 | 0.38 |
| Example 5 | 165.5 | 3.03 | 0.37 |
| Comparative example 1 | 130.4 | 2.16 | 0.38 |
| Comparative example 2 | 126.8 | 2.01 | 1.03 |
As can be seen from the above Table 1, the ceramic material prepared by the invention has good mechanical properties and low linear shrinkage, and can meet the production requirements of high-precision ceramic materials.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The high-precision ceramic material for the 5G signal base station is characterized by comprising the following preparation raw materials in parts by weight:
90-95 parts of alpha-alumina, 6-8 parts of aluminum fluoride, 0.2-0.8 part of magnesium lanthanum aluminate, 3-5 parts of vinyl liquid silicone resin and 80-120 parts of organic solvent;
the vinyl liquid silicone resin is a metal alkoxide modified vinyl liquid silicone resin;
the preparation method of the metal alkoxide modified vinyl liquid silicone resin comprises the following steps:
mixing vinyl triethoxysilane and toluene, stirring uniformly, dripping dilute hydrochloric acid, heating to 40-50 ℃ after dripping, reacting for 8-12h, continuously heating to 85-95 ℃ for reacting for 1-3h, recovering room temperature, separating out an organic phase, concentrating under reduced pressure to obtain liquid vinyl silicone resin, dissolving the obtained liquid vinyl silicone resin with toluene under the protection of nitrogen, adding a metal alkoxy compound, heating to 55-65 ℃ for reacting for 6-10h, and concentrating under reduced pressure;
the metal alkoxide is a zirconium alkoxide.
2. The high-precision ceramic material for 5G signal base stations according to claim 1, comprising the following preparation raw materials in parts by weight:
95 parts of alpha-alumina, 8 parts of aluminum fluoride, 0.6 part of magnesium lanthanum aluminate, 5 parts of vinyl liquid silicone resin and 100 parts of organic solvent.
3. The high-precision ceramic material for 5G signal base stations according to claim 1, wherein the zirconium alkoxide compound is tetra-n-propyl zirconate or tetra-isopropyl zirconate.
4. The high-precision ceramic material for 5G signal base stations according to claim 1, wherein the metal alkoxide is used in an amount of 5 to 12% by mass of the liquid vinyl silicone resin.
5. The high-precision ceramic material for 5G signal base stations according to claim 1, wherein the mass concentration of the dilute hydrochloric acid is 0.5 to 1%.
6. The high-precision ceramic material for 5G signal base stations according to claim 1, wherein the boiling point of the organic solvent is 100 ℃.
7. The method for preparing the high-precision ceramic material for the 5G signal base station according to any one of claims 1 to 6, which is characterized in that alpha-alumina, aluminum fluoride and magnesium lanthanum aluminate are respectively dried and mixed to obtain first powder, vinyl liquid silicone resin is diluted by an organic solvent and then mixed with the first powder for ball milling, then the organic solvent is dried and removed to obtain second powder, the second powder is subjected to compression molding to obtain a ceramic biscuit, the ceramic biscuit is heated and sintered, the first stage is heated to 600 to 650 ℃, the heat is preserved and sintered for 90 to 120 minutes, the second stage is heated to 800 to 850 ℃, the heat is preserved and sintered for 90 to 120 minutes, the third stage is heated to 1400 to 1450 ℃, the heat is preserved and sintered for 120 to 180 minutes, and finally the ceramic biscuit is cooled to room temperature along with a furnace.
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